Generally speaking, when you heat food, you must use the microwave oven. When you use the microwave oven, you can't use metal appliances. The so-called light wave is actually the timely heating tubes in two heaters. You can't cook food with the timely heating tubes. To use the barbecue function, you can only cook the food in the microwave oven first, and then cook the food with the light wave file. When using light wave files, only ceramics, glass, metal and other utensils can be used, and flammable utensils cannot be used.